ADOPTED LEVELS, GAMMAS for 158Sm

Author: N. Nica |  Citation: Nucl. Data Sheets 141, 1 (2017) |  Cutoff date: 1-Feb-2017 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=2005 keV 10S(n)= 6644 keV 7S(p)= 10242 keV 9Q(α)= -1.85×103 keV 5
Reference: 2017WA10

References:
  A  252Cf SF decay  B  158Pm β- decay








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0AB 0+ 5.30 m 3 
% β- = 100
     
    72.80 10 AB (2+)       72.8 1 
  100
[E2]
     0.0
0+
   240.30 15 A  (4+)      167.5 1 
  100
[E2]
    72.80
(2+)
   498.40 17 A  (6+)      258.1 1 
  100
[E2]
   240.30
(4+)
   842.4 3 A  (8+)      344.0 2 
  100
[E2]
   498.40
(6+)
  1266.8 4 A  (10+)      424.4 2 
  100
[E2]
   842.4
(8+)
  1279.70 17 A  (5-) 74 ns 6     781.3 2 
  1039.4 1 
   39 3 
  100 11 
[E1]
[E1]
   498.40
   240.30
(6+)
(4+)
  1322.3 4 A  (5-)     1082.0 3 
  100
[E1]
   240.30
(4+)
  1391.4 3 A  (6-)      111.7 3 
  100

  1279.70
(5-)
  1422.3 5 A  (6-)      100.0 5 
  100

  1322.3
(5-)
  1521.7 3 A  (7-)      130.3 3 
   242.0 3 
  100 6 
   57 4 


  1391.4
  1279.70
(6-)
(5-)
  1540.9 5 A  (7-)      118.6 3 
   218.6 5 
  100 15 
   65 10 


  1422.3
  1322.3
(6-)
(5-)
  1670.1 4 A  (8-)      148.4 3 
   278.7 3 
   76 7 
  100 10 


  1521.7
  1391.4
(7-)
(6-)
  1679.8 6 A  (8-)      138.9 5 
   257.5 3 
   27 4 
  100 15 


  1540.9
  1422.3
(7-)
(6-)
  1765.8 4 A  (12+)      499.0 2 
  100

  1266.8
(10+)
  1836.2 6 A  (9-)      156.4 5 
   295.3 5 
   31 6 
  100 13 


  1679.8
  1540.9
(8-)
(7-)
  1836.9 4 A  (9-)      166.8 3 
   315.2 3 
   90 8 
  100 10 


  1670.1
  1521.7
(8-)
(7-)
  2012.8 7 A  (10-)      176.6 5 
   333.0 5 
   46 23 
  100 14 


  1836.2
  1679.8
(9-)
(8-)
  2021.5 5 A  (10-)      184.6 5 
   351.4 3 
   25 5 
  100 9 


  1836.9
  1670.1
(9-)
(8-)
  2206.2 7 A  (11-)      193.4 5 
   370.0 5 
   50 13 
  100 13 


  2012.8
  1836.2
(10-)
(9-)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  2224.6 5 A  (11-)      203.1 5 
   387.7 3 
   <4
  100 18 


  2021.5
  1836.9
(10-)
(9-)
  2334.3 5 A  (14+)      568.5 2 
  100

  1765.8
(12+)
  2418.9 8 A  (12-)      212.7 5 ?
   406.1 5 
 
  100 20 


  2206.2
  2012.8
(11-)
(10-)
  2443.8 7 A  (12-)      422.3 5 
  100

  2021.5
(10-)
  2682.4 7 A  (13-)      457.8 5 
  100

  2224.6
(11-)
  2934.4 7 A  (14-)      490.6 2 
  100

  2443.8
(12-)
  2967.3 5 ?A  (16+)      633.0 2 
  100

  2334.3
(14+)
  3489.2 9 A  (16-)      554.8 5 
  100

  2934.4
(14-)
  4097.8 12 ?A  (18-)      609 1 ?
  100

  3489.2
(16-)

E(level): From least-square’s fit to the Eγ’s

Jπ(level): Based on the rotational character, systematics, and theoretical calculations

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Kπ=0+ yrast band
     0.0 0+ 5.30 m 3 
% β- = 100
     
    72.80 10  (2+)       72.8 1 
  100
[E2]
     0.0
0+
   240.30 15  (4+)      167.5 1 
  100
[E2]
    72.80
(2+)
   498.40 17  (6+)      258.1 1 
  100
[E2]
   240.30
(4+)
   842.4 3  (8+)      344.0 2 
  100
[E2]
   498.40
(6+)
  1266.8 4  (10+)      424.4 2 
  100
[E2]
   842.4
(8+)
  1765.8 4  (12+)      499.0 2 
  100

  1266.8
(10+)
  2334.3 5  (14+)      568.5 2 
  100

  1765.8
(12+)
  2967.3 5  (16+)      633.0 2 
  100

  2334.3
(14+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Kπ=(5-) band based on 1279.7 level,α=0
  1391.4 3  (6-)        
  1670.1 4  (8-)      148.4 3 
   278.7 3 
   76 7 
  100 10 


  1521.7
  1391.4
(7-)
(6-)
  2021.5 5  (10-)      184.6 5 
   351.4 3 
   25 5 
  100 9 


  1836.9
  1670.1
(9-)
(8-)
  2443.8 7  (12-)      422.3 5 
  100

  2021.5
(10-)
  2934.4 7  (14-)      490.6 2 
  100

  2443.8
(12-)
  3489.2 9  (16-)      554.8 5 
  100

  2934.4
(14-)
  4097.8 12  (18-)      609 1 ?
  100

  3489.2
(16-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - Kπ=(5-) band based on 1279.7 level,α=1
  1279.70 17  (5-) 74 ns 6       
  1521.7 3  (7-)      130.3 3 
   242.0 3 
  100 6 
   57 4 


  1391.4
  1279.70
(6-)
(5-)
  1836.9 4  (9-)      166.8 3 
   315.2 3 
   90 8 
  100 10 


  1670.1
  1521.7
(8-)
(7-)
  2224.6 5  (11-)      203.1 5 
   387.7 3 
   <4
  100 18 


  2021.5
  1836.9
(10-)
(9-)
  2682.4 7  (13-)      457.8 5 
  100

  2224.6
(11-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - Kπ=(5-) band based on 1322.3 level,α=0
  1422.3 5  (6-)        
  1679.8 6  (8-)      138.9 5 
   257.5 3 
   27 4 
  100 15 


  1540.9
  1422.3
(7-)
(6-)
  2012.8 7  (10-)      176.6 5 
   333.0 5 
   46 23 
  100 14 


  1836.2
  1679.8
(9-)
(8-)
  2418.9 8  (12-)      212.7 5 ?
   406.1 5 
 
  100 20 


  2206.2
  2012.8
(11-)
(10-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - Kπ=(5-) band based on 1322.3 level,α=1
  1322.3 4  (5-)        
  1540.9 5  (7-)      118.6 3 
   218.6 5 
  100 15 
   65 10 


  1422.3
  1322.3
(6-)
(5-)
  1836.2 6  (9-)      156.4 5 
   295.3 5 
   31 6 
  100 13 


  1679.8
  1540.9
(8-)
(7-)
  2206.2 7  (11-)      193.4 5 
   370.0 5 
   50 13 
  100 13 


  2012.8
  1836.2
(10-)
(9-)

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
    72.80 (2+)       72.8 1 [E2]7.62α=7.62, α(K)=2.61 4, α(L)=3.89 6, α(M)=0.905 14, α(N)=0.198 3, α(O)=0.0245 4, α(P)=0.0001096 16
   240.30 (4+)      167.5 1 [E2]0.380α=0.380, α(K)=0.259 4, α(L)=0.0942 14, α(M)=0.0215 3, α(N)=0.00474 7, α(O)=0.000620 9, α(P)=1.234×10-5 18
   498.40 (6+)      258.1 1 [E2]0.0904α=0.0904, α(K)=0.0687 10, α(L)=0.01691 24, α(M)=0.00379 6, α(N)=0.000842 12, α(O)=0.0001143 16, α(P)=3.59×10-6 5
   842.4 (8+)      344.0 2 [E2]0.0370α=0.0370, α(K)=0.0293 5, α(L)=0.00600 9, α(M)=0.001330 19, α(N)=0.000297 5, α(O)=4.13×10-5 6, α(P)=1.613E-6 23
  1266.8 (10+)      424.4 2 [E2]0.0201α=0.0201, α(K)=0.01628 23, α(L)=0.00299 5, α(M)=0.000657 10, α(N)=0.0001471 21, α(O)=2.08×10-5 3, α(P)=9.21E-7 13
  1279.70 (5-) 74 ns 6     781.3 2 [E1]1.66×10-3B(E1)(W.u.)=1.8E-9 3, α=1.66E-3, α(K)=0.001429 20, α(L)=0.000186 3, α(M)=3.95E-5 6, α(N)=8.92E-6 13, α(O)=1.332E-6 19, α(P)=8.23E-8 12
(5-) 74 ns 6    1039.4 1 [E1]9.60×10-4B(E1)(W.u.)=2.0E-9 4, α=9.60E-4, α(K)=0.000825 12, α(L)=0.0001059 15, α(M)=2.25E-5 4, α(N)=5.09E-6 8, α(O)=7.62E-7 11, α(P)=4.78E-8 7
  1322.3 (5-)     1082.0 3 [E1]8.91×10-4α=8.91×10-4, α(K)=0.000767 11, α(L)=9.82E-5 14, α(M)=2.09E-5 3, α(N)=4.72E-6 7, α(O)=7.07E-7 10, α(P)=4.44E-8 7

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 5.30 m 3 
% β- = 100
E(level): Kπ=0+ yrast band.
    72.80(2+)   E(level): Kπ=0+ yrast band.
   240.30(4+)   E(level): Kπ=0+ yrast band.
   498.40(6+)   E(level): Kπ=0+ yrast band.
   842.4(8+)   E(level): Kπ=0+ yrast band.
  1266.8(10+)   E(level): Kπ=0+ yrast band.
  1279.70(5-) 74 ns 6  Dominant configuration=ν5/2[642]~#ν5/2[523].
E(level): Kπ=(5-) band based on 1279.7 level,α=1.
  1322.3(5-)   Dominant configuration=π5/2[532]~#π5/2[413].
E(level): Kπ=(5-) band based on 1322.3 level,α=1.
  1391.4(6-)   E(level): Kπ=(5-) band based on 1279.7 level,α=0.
  1422.3(6-)   E(level): Kπ=(5-) band based on 1322.3 level,α=0.
  1521.7(7-)   E(level): Kπ=(5-) band based on 1279.7 level,α=1.
  1540.9(7-)   E(level): Kπ=(5-) band based on 1322.3 level,α=1.
  1670.1(8-)   E(level): Kπ=(5-) band based on 1279.7 level,α=0.
  1679.8(8-)   E(level): Kπ=(5-) band based on 1322.3 level,α=0.
  1765.8(12+)   E(level): Kπ=0+ yrast band.
  1836.2(9-)   E(level): Kπ=(5-) band based on 1322.3 level,α=1.
  1836.9(9-)   E(level): Kπ=(5-) band based on 1279.7 level,α=1.
  2012.8(10-)   E(level): Kπ=(5-) band based on 1322.3 level,α=0.
  2021.5(10-)   E(level): Kπ=(5-) band based on 1279.7 level,α=0.
  2206.2(11-)   E(level): Kπ=(5-) band based on 1322.3 level,α=1.
  2224.6(11-)   E(level): Kπ=(5-) band based on 1279.7 level,α=1.
  2334.3(14+)   E(level): Kπ=0+ yrast band.
  2418.9(12-)   E(level): Kπ=(5-) band based on 1322.3 level,α=0.
  2443.8(12-)   E(level): Kπ=(5-) band based on 1279.7 level,α=0.
  2682.4(13-)   E(level): Kπ=(5-) band based on 1279.7 level,α=1.
E(level)Jπ(level)T1/2(level)Comments
  2934.4(14-)   E(level): Kπ=(5-) band based on 1279.7 level,α=0.
  2967.3(16+)   E(level): Kπ=0+ yrast band.
  3489.2(16-)   E(level): Kπ=(5-) band based on 1279.7 level,α=0.
  4097.8(18-)   E(level): Kπ=(5-) band based on 1279.7 level,α=0.

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